Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
00006excellentexcellent11excellent
230010excellentexcellent11excellent
22005excellentexcellent11excellent
210010excellentexcellent11excellent
200010excellentexcellent11excellent
19007excellentexcellent11excellent
18009excellentexcellent11excellent
17007excellentexcellent11excellent
16004excellentexcellent11excellent
15003excellentexcellent11excellent
140012excellentexcellent11excellent
13008excellentexcellent11excellent
120011excellentexcellent11excellent
110011excellentexcellent11excellent
10009excellentexcellent11excellent
09006excellentexcellent11excellent
080010excellentexcellent11excellent
070010excellentexcellent11excellent
060014excellentexcellent11excellent
050011excellentexcellent11excellent
040013excellentexcellent11excellent
030014excellentexcellent11excellent
020014excellentexcellent11excellent
010015excellentexcellent11excellent